No one has been there yet
To develop the problem, we require the values concerning the conservation of momentum, specifically as given for collisions.
By definition the conservation of momentum tells us that,
To find the speed at which the arrow impacts the apple we turn to the equation of time, in which,

The linear velocity of an object is given by

Replacing the equation of time we have to,

Velocity two is neglected since there is no velocity of said target before the collision, thus,

Clearing for m_2

Answer:
How long would it take a machine to do 13,000 joules of work if the power rating ... An object gains 15 joules of potential energy as it is lifted vertically 5.0 meters. ... As the time required to do a given quantity of work decreases, the power ... How much work is being done to the system by the person of the sled moves 10 m?
The answer is wave.
A wave can be defined as a rhythmic flow that moves over a medium from one place to the different area.